A Guide to the Project Management Body of Knowledge (PMBOK(R) Guide) provides generalized project management guidance applicable to most projects most of the time. In order to apply this generalized guidance to construction projects, the Project Management Institute has developed the Construction Extension to the PMBOK(R) Guide. This Construction Extension provides construction-specific guidance for the project management practitioner for each of the PMBOK(R) Guide Knowledge Areas, as well as guidance in these additional areas not found in the PMBOK(R) Guide: -All project resources, rather than just human resources -Project health, safety, security, and environmental management -Project financial management, in addition to cost -Management of claims in construction This edition of the Construction Extension also follows a new structure, discussing the principles in each of the Knowledge Areas rather than discussing the individual processes. This approach broadens the applicability of the Construction Extension by increasing the focus on the "what" and "why" of construction project management. This Construction Extension also includes discussion of emerging trends and developments in the construction industry that affect the application of project management to construction projects.